Perhaps you should try some spelling variations:
onto-rhino-laryngology » otto-rhino-laryngology, unto-rhino-laryngology, ont-rhino-laryngology, onto-rhine-laryngology, onto-reino-laryngology, onto-rhino-otolaryngology
opto-rhino-laryngology » opto-rhine-laryngology, opto-reino-laryngology, opto-rhino-otolaryngology, otto-rhino-laryngology, opt-rhino-laryngology
opto-rein-laryngology » opto-rein-otolaryngology, otto-rein-laryngology, opt-rein-laryngology, opto-reid-laryngology

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (advances OR advanced) in (onto-rhino-laryngology OR (opto-rhino-laryngology OR opto-rein-laryngology )).
• Adding a wildcard symbol may retrieve word variants: (advances or advanced) in (onto-rhino-laryngology or (opto-rhino-laryngology or opto-rein-laryngology ))*.